Theory Test

Practice test

Practice Test 3

40 questions, just like the real test. Attempt them, then check the answer key below — or take the timed, auto-scored version in Theory Test Ireland.

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  1. 1. What is the primary reason hand-held mobile phone use while driving is so dangerous?

    • A. It significantly diverts attention, slowing reaction time
    • B. It drains the car battery
    • C. It can damage the phone
    • D. It only affects new drivers
  2. 2. A child weighing 40kg and measuring 155cm tall is travelling in your car. Do they need a child restraint?

    • A. No, they exceed both the 36kg and 150cm thresholds so a standard seat belt is sufficient
    • B. Yes, but only in the rear seats
    • C. Yes, all children must use a child restraint regardless of size
    • D. Only if they are under 12 years old
  3. 3. Under what condition may a rear-facing infant seat be used on the front passenger seat?

    • A. Only if the child is older than two years
    • B. Only if the front passenger airbag has been deactivated
    • C. Only on journeys shorter than five kilometres
    • D. At any time, as the front seat is always safe
  4. 4. What is the recommended action if you feel drowsy while driving on a long journey?

    • A. Pull off the road safely, rest and take a break before continuing
    • B. Drink an energy drink and drive faster to arrive sooner
    • C. Continue driving — tiredness passes naturally
    • D. Turn up the radio and open a window
  5. 5. At how many penalty points does a fully licensed driver face disqualification in Ireland?

    • A. 10 points
    • B. 6 points
    • C. 12 points
    • D. 7 points
  6. 6. A novice driver already has 5 penalty points on their licence. How many more points will result in disqualification?

    • A. 3 more points
    • B. 2 more points
    • C. 7 more points
    • D. 12 more points
  7. 7. Can a Garda stop your vehicle at any time to check documents?

    • A. Only between midnight and 6am
    • B. Only if the Garda witnessed you committing an offence
    • C. Only at official checkpoints
    • D. Yes, Gardaí have the power to stop any vehicle
  8. 8. What documents must a driver be able to produce when asked by a Garda?

    • A. NCT cert and insurance only
    • B. Driving licence only
    • C. Driving licence, insurance certificate, and NCT certificate (if applicable)
    • D. Passport and utility bill only
  9. 9. When should you check your tyre pressures?

    • A. When the tyres are hot after a long drive
    • B. When the tyres are cold, before a long journey
    • C. Only when a warning light comes on
    • D. Once a year during the NCT
  10. 10. A tyre with a visible cut or bulge in the sidewall:

    • A. Should be repaired with a patch before use
    • B. Must not be used and should be replaced immediately
    • C. Is safe to use at low speeds only
    • D. Can be driven on until the NCT is due
  11. 11. When must you use dipped headlights during daytime?

    • A. Only when driving through tunnels longer than 500 m
    • B. Only on motorways
    • C. Only between midnight and 6 am
    • D. Whenever visibility is seriously reduced due to poor weather
  12. 12. When is it permissible to use rear fog lights?

    • A. On motorways at all times to warn following drivers
    • B. Only in fog or falling snow when visibility is seriously reduced
    • C. Whenever it is raining
    • D. At night on unlit roads as a substitute for brake lights
  13. 13. Which of the following is a sign that your brakes may need attention?

    • A. The brake pedal feels firm and the vehicle stops in a straight line
    • B. The handbrake holds the vehicle on a slight hill
    • C. The vehicle pulls to one side when braking
    • D. Braking distance decreases on wet roads
  14. 14. When using a vehicle equipped with ABS in an emergency stop, you should:

    • A. Engage the handbrake simultaneously to shorten stopping distance
    • B. Apply firm, continuous pressure to the brake pedal and steer around the obstacle if necessary
    • C. Release the brake pedal every two seconds to allow the wheels to spin
    • D. Pump the brake pedal rapidly yourself to simulate the ABS action
  15. 15. Which of these is a warning sign of a possible steering or suspension problem?

    • A. The vehicle wanders or drifts without the driver making steering inputs
    • B. The vehicle steers smoothly with no vibration
    • C. The speedometer needle vibrates above 120 km/h
    • D. The handbrake holds on a hill without the brake pedal depressed
  16. 16. A knocking noise from the front suspension when going over bumps or when turning could indicate:

    • A. A discharged battery
    • B. Worn or loose suspension joints such as ball joints or anti-roll bar links
    • C. Brake fluid that needs replacing
    • D. Low engine coolant
  17. 17. Which of these conditions would cause a windscreen to fail the NCT?

    • A. Minor scratches outside the wiper sweep area
    • B. Light water marks that can be cleaned off
    • C. A crack or chip within the driver's critical vision area
    • D. Tinted film on the rear window only
  18. 18. On a cold morning, a small amount of white steam comes from your exhaust. What does this indicate?

    • A. A failed head gasket
    • B. Normal condensation that clears once the engine warms up
    • C. Engine oil burning in the combustion chamber
    • D. A serious engine fault requiring immediate repair
  19. 19. What is the purpose of the NCT?

    • A. To assess whether a vehicle meets minimum roadworthiness and safety standards
    • B. To check a driver's road knowledge every few years
    • C. To set the annual road tax band for the vehicle
    • D. To register the vehicle with the local council
  20. 20. What shape and colour are Irish warning signs?

    • A. Red triangle with a white background
    • B. Blue rectangle
    • C. White circle with a red border
    • D. Yellow diamond with a black symbol
  21. 21. What shape is the STOP sign?

    • A. Circle
    • B. Diamond
    • C. Triangle
    • D. Octagon
  22. 22. A white circle with a red border showing the number '50' in black indicates what?

    • A. Maximum speed limit of 50 km/h
    • B. Advisory speed of 50 km/h
    • C. End of the 50 km/h zone
    • D. Minimum speed of 50 km/h
  23. 23. A yellow diamond sign shows a circular arrow. What does it warn about?

    • A. One-way street ahead
    • B. U-turn permitted
    • C. Sharp bend ahead
    • D. Roundabout ahead
  24. 24. A double continuous white line painted on the road means:

    • A. You may cross from the right-hand line side only
    • B. All traffic must keep to the left of the lines, except in an emergency or for access
    • C. Overtaking is permitted in good weather
    • D. Cyclists only may cross the lines
  25. 25. When may you legally enter and wait in a yellow box junction?

    • A. When going straight ahead and the lights are green, even if traffic is queued beyond the box
    • B. At any time, because waiting briefly in a yellow box is always permitted
    • C. When turning right and waiting for a gap in oncoming traffic, provided your exit lane is clear
    • D. When turning left and your exit is blocked by stationary traffic
  26. 26. Are you permitted to park on the zig-zag lines at a pedestrian crossing?

    • A. No, parking on zig-zag lines is prohibited at all times
    • B. Yes, if you are only stopping briefly to drop off a passenger
    • C. Yes, provided no pedestrians are waiting to cross
    • D. Yes, outside of peak traffic hours
  27. 27. Which describes the traffic light sequence used in Ireland?

    • A. Green flashes before changing straight to red
    • B. Red changes directly to green, with no combined red-and-amber phase
    • C. Red and amber are shown together before the green light appears
    • D. Amber is shown together with green before the red light appears
  28. 28. How long do candidates have to complete the Irish car driver theory test?

    • A. 60 minutes
    • B. 45 minutes
    • C. 90 minutes
    • D. 30 minutes
  29. 29. What plates must a learner driver display on their vehicle in Ireland?

    • A. L plates (white with red L)
    • B. P plates (white with red P)
    • C. No plates required if accompanied
    • D. N plates (white with green N)
  30. 30. What is the blood alcohol limit for a learner permit holder in Ireland?

    • A. 20 mg per 100 ml of blood
    • B. 0 mg per 100 ml (zero tolerance)
    • C. 80 mg per 100 ml of blood
    • D. 50 mg per 100 ml of blood
  31. 31. For how long must a newly qualified driver display N plates in Ireland?

    • A. 1 year
    • B. 6 months
    • C. Until their first penalty point is removed
    • D. 2 years
  32. 32. What is the default speed limit on a national road (non-motorway) in Ireland?

    • A. 100 km/h
    • B. 110 km/h
    • C. 120 km/h
    • D. 80 km/h
  33. 33. You are driving in a clearly signed 30 km/h special speed limit zone. What type of area is this most likely to be?

    • A. A dual carriageway in a city
    • B. A national road with roadworks
    • C. A school or residential area where a lower limit has been set
    • D. A motorway slip road
  34. 34. What colour are the L-plates that a learner permit holder must display on a car in Ireland?

    • A. White letter L on a red background
    • B. Black letter L on a yellow background
    • C. Red letter L on a white background
    • D. Green letter L on a white background
  35. 35. At a roundabout with no road markings or signs, who has priority?

    • A. Traffic already circulating on the roundabout
    • B. The driver approaching from the left
    • C. The driver on the larger road
    • D. The driver approaching from the right
  36. 36. You are waiting at a junction marked with a 'Yield' sign. A car is approaching on the major road. What must you do?

    • A. Proceed immediately to avoid holding up traffic behind you
    • B. Sound your horn to warn the approaching driver
    • C. Flash your headlights and proceed
    • D. Give way to the traffic on the major road before entering
  37. 37. When may you cross a continuous (unbroken) white centre line?

    • A. To overtake any vehicle travelling under 30 km/h
    • B. To overtake when the road ahead is clearly visible and safe
    • C. At any time during the hours of darkness
    • D. For access to a premises or in an emergency, never to overtake
  38. 38. At which of the following places is overtaking prohibited in Ireland?

    • A. On a motorway in the left-hand lane
    • B. On a clear dual carriageway with two lanes in your direction
    • C. At a pedestrian crossing
    • D. On a straight road with a broken white line
  39. 39. When is it permitted to use the hard shoulder of a motorway in Ireland?

    • A. When joining the motorway from a slip road
    • B. When overtaking a slow vehicle
    • C. During peak hours when traffic is heavy
    • D. In the event of a breakdown or emergency stop
  40. 40. You are driving in heavy rain on an open road. What following distance should you maintain from the vehicle ahead?

    • A. Two seconds — the same as dry conditions
    • B. At least four seconds to allow for increased stopping distances
    • C. One second — brakes work the same in rain
    • D. Six seconds, as rain doubles stopping distance

Answer key

  1. 1. It significantly diverts attention, slowing reaction timeHandling a phone diverts both mental and physical attention from driving, dramatically increasing stopping distances and reaction times.
  2. 2. No, they exceed both the 36kg and 150cm thresholds so a standard seat belt is sufficientChildren who exceed both 150cm in height and 36kg in weight may use a standard adult seat belt without a child restraint.
  3. 3. Only if the front passenger airbag has been deactivatedA rear-facing child seat may be used on the front passenger seat only if the airbag has been deactivated. An active airbag could cause fatal injury to the child in a collision.
  4. 4. Pull off the road safely, rest and take a break before continuingThe only effective remedy for driver fatigue is rest. You should pull over safely, take a break or short sleep before continuing your journey.
  5. 5. 12 pointsA fully licensed driver who accumulates 12 penalty points within a 3-year period is automatically disqualified from driving.
  6. 6. 2 more pointsNovice drivers are disqualified at 7 penalty points. With 5 already recorded, just 2 more will trigger disqualification.
  7. 7. Yes, Gardaí have the power to stop any vehicleGardaí have the legal power to stop any vehicle at any time and request the driver to produce relevant documents.
  8. 8. Driving licence, insurance certificate, and NCT certificate (if applicable)A Garda can require you to produce your driving licence, evidence of motor insurance, and a valid NCT certificate if the vehicle is subject to testing.
  9. 9. When the tyres are cold, before a long journeyTyre pressure should be checked when the tyres are cold because driving heats the air inside, giving a falsely high reading.
  10. 10. Must not be used and should be replaced immediatelyA bulge or cut in a tyre sidewall indicates structural damage that could cause a sudden blowout; the tyre must be replaced.
  11. 11. Whenever visibility is seriously reduced due to poor weatherDipped headlights must be used any time visibility is poor, such as in heavy rain, fog, or snow, even during daylight hours.
  12. 12. Only in fog or falling snow when visibility is seriously reducedRear fog lights are very bright and can mask your brake lights; they should only be switched on when visibility is seriously reduced.
  13. 13. The vehicle pulls to one side when brakingPulling to one side during braking usually indicates uneven brake wear or a fault such as a seized calliper, which requires immediate inspection.
  14. 14. Apply firm, continuous pressure to the brake pedal and steer around the obstacle if necessaryWith ABS you should press the brake pedal firmly and hold it; the system modulates braking automatically, and you can continue steering to avoid the hazard.
  15. 15. The vehicle wanders or drifts without the driver making steering inputsWandering or pulling to one side when the steering wheel is released can indicate worn steering or suspension components and should be inspected.
  16. 16. Worn or loose suspension joints such as ball joints or anti-roll bar linksKnocking from the suspension area often points to worn ball joints, anti-roll bar bushes, or other linkage components that need replacement.
  17. 17. A crack or chip within the driver's critical vision areaCracks or chips in the driver's forward vision zone are an NCT failure item because they distort or restrict the driver's view of the road.
  18. 18. Normal condensation that clears once the engine warms upCondensation in the exhaust system produces harmless white steam when starting a cold engine; it disappears once the engine warms up.
  19. 19. To assess whether a vehicle meets minimum roadworthiness and safety standardsThe NCT examines key safety and emissions items to ensure vehicles on Irish roads meet the required standard for safe operation.
  20. 20. Yellow diamond with a black symbolIrish warning signs are yellow diamonds with black symbols. This distinguishes them from the red triangles used in most of continental Europe.
  21. 21. OctagonThe STOP sign is an octagon (eight sides) with a red background and white text. Its unique shape allows drivers to recognise it even when partially obscured.
  22. 22. Maximum speed limit of 50 km/hA circular sign with a red border and a number is a maximum speed limit sign. Drivers must not exceed that speed.
  23. 23. Roundabout aheadA yellow diamond with a circular arrow warns that a roundabout is ahead. Drivers should prepare to give way to traffic already on the roundabout.
  24. 24. All traffic must keep to the left of the lines, except in an emergency or for accessSingle or double continuous white lines separate traffic travelling in opposite directions, and all traffic must keep to the left of them. You must never cross or straddle them to overtake. The only exceptions are an emergency, or access — crossing to enter or leave a side road, premises or land on the right-hand side of the road.
  25. 25. When turning right and waiting for a gap in oncoming traffic, provided your exit lane is clearThe only permitted exception is when turning right: you may wait in the box for a gap in oncoming traffic, as long as your exit road is not blocked.
  26. 26. No, parking on zig-zag lines is prohibited at all timesParking or stopping on zig-zag lines is prohibited at all times; they exist to keep the crossing clear and maintain sightlines for pedestrians and drivers.
  27. 27. Red changes directly to green, with no combined red-and-amber phaseIreland does not use the combined red-and-amber phase before green; the sequence goes directly from red to green, unlike some other European countries.
  28. 28. 45 minutesCandidates are given 45 minutes to answer 40 questions. The test is taken on a computer touchscreen at an RSA test centre.
  29. 29. L plates (white with red L)A learner permit holder must display L plates (white background with a red L) on both the front and rear of the vehicle at all times while driving.
  30. 30. 20 mg per 100 ml of bloodLearner permit holders have a lower blood alcohol limit of 20 mg per 100 ml of blood, compared to 50 mg for experienced drivers.
  31. 31. 2 yearsN plates must be displayed for the first 2 years after passing the driving test and receiving a full licence for the first time.
  32. 32. 100 km/hThe default speed limit on national roads (N-roads) that are not motorways is 100 km/h.
  33. 33. A school or residential area where a lower limit has been setSpecial speed limits of 30 km/h are commonly applied around schools, playgrounds, and residential streets where vulnerable road users are present.
  34. 34. Red letter L on a white backgroundLearner drivers in Ireland must display red L-plates (red letter L on a white background) at the front and rear of the vehicle.
  35. 35. Traffic already circulating on the roundaboutAt all roundabouts in Ireland, vehicles already on the roundabout have priority. Approaching drivers must yield to circulating traffic.
  36. 36. Give way to the traffic on the major road before enteringA Yield sign requires you to slow down and give way to all traffic on the major road before entering. You may only proceed when it is safe to do so.
  37. 37. For access to a premises or in an emergency, never to overtakeA continuous (unbroken) white centre line must never be crossed for overtaking. You may only cross it for access to a premises or side road, or in an emergency.
  38. 38. At a pedestrian crossingOvertaking is prohibited at pedestrian crossings. A broken white line, a clear dual carriageway, and the left lane of a motorway are all places where overtaking is permitted when it is safe to do so.
  39. 39. In the event of a breakdown or emergency stopThe hard shoulder is reserved for genuine breakdowns and emergencies. Driving on it or using it to pass other traffic is illegal except in an emergency.
  40. 40. At least four seconds to allow for increased stopping distancesIn wet conditions, braking distances increase significantly. You should at least double the dry-weather two-second rule, giving a minimum of four seconds in rain.

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